The Three Musketeers by Alexandre Dumas Chapter 5 Page 19

This short interval was sufficient to determine d’Artagnan on the part he was to take. It was one of those events which decide the life of a man; it was a choice between the king and the cardinal — the choice made, it must be persisted in. To fight, that was to disobey the law, that was to risk his head, that was to make at one blow an enemy of a minister more powerful than the king himself. All this young man perceived, and yet, to his praise we speak it, he did not hesitate a second. Turning towards Athos and his friends, “Gentlemen,” said he, “allow me to correct your words, if you please. You said you were but three, but it appears to me we are four.”

“But you are not one of us,” said Porthos.

“That’s true,” replied d’Artagnan;